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TPS62320DRCR 数据表(PDF) 6 Page - Texas Instruments

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部件名 TPS62320DRCR
功能描述  500-mA, 3-MHz SYNCHRONOUS STEP-DOWN CONVERTER IN CHIP SCALE PACKAGING
PDF  31 Pages
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制造商  TI [Texas Instruments]
网页  http://www.ti.com
标志 TI - Texas Instruments

TPS62320DRCR 数据表(HTML) 6 Page - Texas Instruments

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FUNCTIONAL BLOCK DIAGRAM
+
_
+
Power-Save
Mode
Switching
Logic
REF
REF
_
EN
R(DIS)
P
TPS6232x
Only
N-MOS Current Limit
Compator
P-MOS Current Limit
Compator
Gate Driver
Anti
Shoot-Through
P
P
SW
VOUT
PGND
_
+
Comparator Low
-1.5% V OUT(NOMINAL)
Summing
Comparator
+
+
-
+
+
+
-
-
+
RAMP HEIGHT
0.1 VIN
+
-
Mid-, High-Frequency
Zero-Pole Pair
_
+
A
A
R2
R1
See note A
VREF
C
2R
VOUT
R
2C
A
= 3
(DC)
-
Soft-Start
Comp Low
3-MHz
Oscillator + PLL
Sawtooth
Generator
Thermal
Shutdown
Band Gap
VREF = 0.4 V
Undervoltage
Lockout
Bias Supply
AGND
ADJ
FB
AVIN
MODE/SYNC
EN
VIN
NOTE A:
:
PARAMETER MEASUREMENT INFORMATION
AVIN
VIN
SW
U1
L1
ADJ
C1
VO
1.6 V/500 mA
PGND
C2
VI
AGND
VOUT
R1
R2
EN
MODE/SYNC
A
A
FB
A
1
2
3
8
7
10
6
4
5
9
10 F
m
List of Components:
U1 = TPS6230x
L1 = FDK MIPW3226 Series
C1, C2 = X5R/X7R
2.7 V . . 6 V
TPS62300, TPS62301, TPS62302
TPS62303, TPS62305, TPS62311
TPS62313, TPS62320, TPS62321
SLVS528B – JULY 2004 – REVISED JUNE 2005
6



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